WHICH OF THE FOLLOWING INFECTIOUS DISEASES WOULE PROBABLY BE THE EASIEST TO ERADICATE?

a. AN INFECTIOUS DISEASE CAUSED BY A PATHOGEN THAT IS COMMON IN WILD ANIMALS BUT SOMETIMES INFECTS HUMANSb. AN INFECTIOUS DISEASE THAT IS LATENT DISEASEc. AN INFECTIOUS DISEASE THAT OCCURS EXCLUSIVELY IN HUMAN AND ALWAYS RESULTS IN OBVIOUS SYMPTOMSd. A MILD INFECTIOUS DISEASE EFFECTING HUMANS THAT OFTEN RESULTS IN NO OBVIOUS SYMPTOMSe. AN INFECTIOUS DISEASE THAT READILY INFECTS BOTH WILD ANIMALS AND HUMANS

USING THE ID50 INFORMATION GIVEN BELOW FOR VARIOUS PATHOGENS WHICH OF THE FOLLOWING INFECTIOUS AGENTS IS THE MOST EASILY TRANSMITTED?